Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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- Upon learning about the mechanism of apoptosis, the question asked was; Is cytochrome c being released from mitochondria or is it being expressed by an induced nuclear gene and being produced in the cytosol. Which one of the following observations would provide the best evidence that it was being released from the mitochondria? Bcl2 blocks release of cytochrome c from mitochondria and also inhibits apoptosis Active Fas receptors trigger release of cytochrome c from mitochondria. Extracellular signals that block apoptosis do not produce cytosolic cytochrome c Caspase inhibitors block release of cytochrome c from the mitochondriaarrow_forwardThe cell enters g1 and cyclin D binds with CDK4/6 Increases in cyclin D expression prevent p21/p27 from inhibiting cyclin E/CDK2 Rb is hypo-phosphorylated E2F is no longer repressed and induces expression of E2F and cyclin E The cell enters S phase and cyclin A binds to CDK2 cyclin A binds to CDC 2 > Cell enters G2 and cyclin B binds CDC 2 Cell enters M phase and proliferates Put these in the correct order from 1-8arrow_forwardWhich change is most likely to directly interfere with cytokinesis in a dividing animal cell? The loss of a lysine residue in a histone protein A mutation that affects the G2-M cyclin-CDK complex A mutation in the gene that encodes actin A mutation that affects the S cyclin-CDK complex A mutation in the RB genearrow_forward
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